Privacy

GrogLog does not collect any information about you. This page explains what the app stores and where, on iPhone and on Android.

Your log is yours

Everything you enter (drinks, days, goals and settings) is stored on your phone. GrogLog has no account, no server and no analytics, and it contains no advertising or tracking code. The developer never receives any of your data, and none of it is sold or shared.

Your log is included in your phone's own backups according to your device's settings, in the same way as any other app's data: on iPhone, iCloud Backup or a backup to a computer; on Android, Android's backup to your Google account. The developer cannot read either.

iCloud sync (iPhone)

From version 1.1, GrogLog on iPhone keeps a copy of your drinks, days, goal and settings in your own iCloud account, so your log comes back on a new iPhone. It is stored in the private part of iCloud that belongs to your Apple Account: only you can read it, and neither the developer nor anyone else has access to it. Apple's privacy policy covers how iCloud stores it.

You can turn sync off in Setup. Turning it off stops syncing and deletes nothing. To remove the copy from iCloud, go to Settings › your name › iCloud › Manage Account Storage, and delete GrogLog's data there.

Apple Health (iPhone)

If you turn it on, GrogLog writes the drinks and calories you log to Apple Health. If you turn on heart readings or sleep, it reads your heart rate, resting heart rate, heart rate variability and sleep from Apple Health to show them on Reports. You choose which of these to allow, and can change your mind in the Health app at any time.

Health Connect (Android)

On Android, GrogLog can use Health Connect if you allow it. With heart readings turned on, it reads heart rate, resting heart rate and heart rate variability, and with sleep turned on, it reads your sleep sessions and their stages; these are shown on Reports against what you drank the evening before. With copying turned on, it writes the calories in the drinks you log as nutrition records, so other health apps can count them. Each is a separate permission that you grant or refuse in Health Connect, and can withdraw there at any time.

GrogLog reads only what Reports needs and writes only the calories of drinks you log.

How health data is used

Data from Apple Health and Health Connect is used only to show these readings in the app. It is processed on your phone and never leaves it: GrogLog does not send it to the developer or anyone else, does not use it for advertising or to decide anything about you, and does not include it in exports. Its use complies with the Health Connect permissions policy, including its Limited Use requirements, and with Apple's HealthKit rules.

Exports

When you export your log, GrogLog creates a file and hands it to your phone's share sheet. Where it goes from there is up to you.

Keeping and deleting your data

Your log is kept on your phone until you delete it. Deleting the app deletes the log stored on the phone. Copies you made yourself, in an export, a device backup or (on iPhone) iCloud sync, are kept by those services until you delete them there. Because the developer holds none of your data, there is nothing for the developer to delete on request; to remove what GrogLog wrote to Apple Health or Health Connect, delete it in the Health app or in Health Connect.

Security

Your log is protected by your phone's own storage encryption and lock screen. Backups and sync are encrypted by Apple and Google as their services describe. GrogLog itself makes no network requests and has no server that could be breached.

Crash reports

If you have chosen to share diagnostics with app developers in your phone's settings, Apple or Google may pass on anonymised crash reports. GrogLog adds nothing to these.

Children

GrogLog is intended for adults of legal drinking age, and is not directed at children.

Contact

Questions about privacy can be sent to support@groglog.io.

Last updated 12 October 2026.